| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | year have [vb pp] a [adj] | 30 |
|
| 2 | year have [verb] a [adj] | 29 |
|
| 3 | years have [verb] a [adj] | 27 |
|
| 4 | year have seen a [adj] | 13 |
|
| 5 | year have see a [adj] | 13 |
|
| 6 | year have witness a [adj] | 7 |
|
| 7 | year have witnessed a [adj] | 7 |
|
